Founder of Ergon Capital SA, Ergon Capital Advisors SA, Ergon Capital Partners SA and Sienna Capital SARL, Ian Gallienne is a French entrepreneur and businessperson who has been at the head of 10 different companies and holds the position of Chairman of Sienna Capital SARL, Managing Director at Groupe Bruxelles Lambert SA (Investment Company) and Chief Executive Officer & Director at Groupe Bruxelles Lambert SA. Ian Gallienne is also Manager of Serena 2017 Sc and on the board of 11 other companies.

In the past he was Director & Managing Director at Ergon Capital SA, Manager at Rhone Group LLP, Managing Director at Ergon Capital Partners III SA, Chief Executive Officer of Ergon Capital Partners SA, Managing Director at Ergon Capital II SARL, Managing Director at Egerton SARL, Managing Director at Ergon Capital Advisors SA, Managing Director at Ergon Capital Partners II SA and Manager of Rhône Capital LLC.

Ian Gallienne received an MBA from INSEAD and an undergraduate degree from Ecole Supérieure des Dirigeant d'Entreprise.